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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/common/input/synthetic_touch_driver.h"
#include "base/notimplemented.h"
#include "content/common/input/synthetic_gesture_target.h"
namespace content {
SyntheticTouchDriver::SyntheticTouchDriver() {}
SyntheticTouchDriver::SyntheticTouchDriver(
blink::SyntheticWebTouchEvent touch_event)
: touch_event_(touch_event) {}
SyntheticTouchDriver::~SyntheticTouchDriver() {}
void SyntheticTouchDriver::DispatchEvent(SyntheticGestureTarget* target,
const base::TimeTicks& timestamp) {
touch_event_.SetTimeStamp(timestamp);
if (touch_event_.GetType() != blink::WebInputEvent::Type::kUndefined) {
base::WeakPtr<SyntheticPointerDriver> weak_this = AsWeakPtr();
target->DispatchInputEventToPlatform(touch_event_);
// Dispatching a touch event can cause the containing WebContents to be
// synchronously deleted.
if (!weak_this) {
return;
}
}
touch_event_.ResetPoints();
ResetPointerIdIndexMap();
}
void SyntheticTouchDriver::Press(float x,
float y,
int index,
SyntheticPointerActionParams::Button button,
int key_modifiers,
float width,
float height,
float rotation_angle,
float force,
float tangential_pressure,
int tilt_x,
int tilt_y,
const base::TimeTicks& timestamp) {
DCHECK_GE(index, 0);
DCHECK(pointer_id_map_.find(index) == pointer_id_map_.end());
int touch_index =
touch_event_.PressPoint(x, y, width / 2.f, height / 2.f, rotation_angle,
force, tangential_pressure, tilt_x, tilt_y);
touch_event_.touches[touch_index].id = index;
pointer_id_map_[index] = touch_index;
if (from_devtools_debugger_)
key_modifiers |= blink::WebInputEvent::kFromDebugger;
touch_event_.SetModifiers(key_modifiers);
}
void SyntheticTouchDriver::Move(float x,
float y,
int index,
int key_modifiers,
float width,
float height,
float rotation_angle,
float force,
float tangential_pressure,
int tilt_x,
int tilt_y,
SyntheticPointerActionParams::Button button) {
DCHECK_GE(index, 0);
DCHECK(pointer_id_map_.find(index) != pointer_id_map_.end());
touch_event_.MovePoint(pointer_id_map_[index], x, y, width / 2.f,
height / 2.f, rotation_angle, force,
tangential_pressure, tilt_x, tilt_y);
if (from_devtools_debugger_)
key_modifiers |= blink::WebInputEvent::kFromDebugger;
touch_event_.SetModifiers(key_modifiers);
}
void SyntheticTouchDriver::Release(int index,
SyntheticPointerActionParams::Button button,
int key_modifiers) {
DCHECK_GE(index, 0);
DCHECK(pointer_id_map_.find(index) != pointer_id_map_.end());
touch_event_.ReleasePoint(pointer_id_map_[index]);
if (from_devtools_debugger_)
key_modifiers |= blink::WebInputEvent::kFromDebugger;
touch_event_.SetModifiers(key_modifiers);
pointer_id_map_.erase(index);
}
void SyntheticTouchDriver::Cancel(int index,
SyntheticPointerActionParams::Button button,
int key_modifiers) {
DCHECK_GE(index, 0);
DCHECK(pointer_id_map_.find(index) != pointer_id_map_.end());
touch_event_.CancelPoint(pointer_id_map_[index]);
if (from_devtools_debugger_)
key_modifiers |= blink::WebInputEvent::kFromDebugger;
touch_event_.SetModifiers(key_modifiers);
touch_event_.dispatch_type =
blink::WebInputEvent::DispatchType::kEventNonBlocking;
pointer_id_map_.erase(index);
}
void SyntheticTouchDriver::Leave(int index) {
NOTIMPLEMENTED();
}
bool SyntheticTouchDriver::UserInputCheck(
const SyntheticPointerActionParams& params) const {
if (params.pointer_action_type() ==
SyntheticPointerActionParams::PointerActionType::NOT_INITIALIZED) {
return false;
}
if (params.pointer_action_type() ==
SyntheticPointerActionParams::PointerActionType::PRESS &&
pointer_id_map_.find(params.pointer_id()) != pointer_id_map_.end()) {
return false;
}
if (params.pointer_action_type() ==
SyntheticPointerActionParams::PointerActionType::MOVE &&
pointer_id_map_.find(params.pointer_id()) == pointer_id_map_.end()) {
return false;
}
if (params.pointer_action_type() ==
SyntheticPointerActionParams::PointerActionType::RELEASE &&
pointer_id_map_.find(params.pointer_id()) == pointer_id_map_.end()) {
return false;
}
return true;
}
base::WeakPtr<SyntheticPointerDriver> SyntheticTouchDriver::AsWeakPtr() {
return weak_ptr_factory_.GetWeakPtr();
}
void SyntheticTouchDriver::ResetPointerIdIndexMap() {
unsigned free_index = 0;
for (unsigned int i = 0; i < blink::WebTouchEvent::kTouchesLengthCap; ++i) {
if (free_index >= touch_event_.touches_length)
break;
if (touch_event_.touches[i].state !=
blink::WebTouchPoint::State::kStateUndefined) {
touch_event_.touches[free_index] = touch_event_.touches[i];
if (free_index != i)
touch_event_.touches[i] = blink::WebTouchPoint();
int pointer_id = GetIndexFromMap(i);
pointer_id_map_[pointer_id] = free_index;
free_index++;
}
}
}
int SyntheticTouchDriver::GetIndexFromMap(int value) const {
PointerIdIndexMap::const_iterator it;
for (it = pointer_id_map_.begin(); it != pointer_id_map_.end(); ++it) {
if (it->second == value) {
return it->first;
}
}
NOTREACHED() << "Failed to find the value.";
}
} // namespace content
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